Work / Panic at the doctor - I need a sick note (L4) from my work in Poland [9]

Hi everyone

I am stuck in a bit of a pickle.

At the end of October, I fell very ill. I had an African doctor come to my house to see me and I took sick leave from work assuming that she would be able to provide me with a legitimate sicknote for work. However she later told me that she can give me a prescription but she cannot officially give me a sick note for work because She practices officially in Rwanda. Now this has been about a month ago or so. Unfortunately all the Polish doctors tell me that I cannot take sick leave for more than three days back. And this has been a month!.

Is there a Doctor Who can provide me with a sick leave for work for end of October? L4 to be more specific!